Select a matrix with a number of rows and columns of your choice, complete it with consecutive numbers, moving in it with horizontal and vertical jumps of two blanks and diagonally one jump only.

Only perseverance and the ability 'to "look ahead" will lead you to the final result: complete matrix until the the last number!!!

Choose up to a maximum of 30 rows and 30 columns for a challenge to the limits of the human, saves and retrieves your matrices, which are complete or unfinished.

Good matrix !!!